/* 公共样式 */
*{
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    box-sizing: border-box;
}
body{
	width: 100vw;
	height: 100vh;
}
img{
	border:0 none;
	vertical-align: top;
}
i,em{
	font-style: normal;
}
a{
	text-decoration: none;
}
.clearfix:after{
	content:"";
	display: block;
	clear: both;
}
.clearfix{ 
	zoom:1;
}